Global Patent Index - EP 3907983 A1

EP 3907983 A1 20211110 - FAULT DETECTION CIRCUIT FOR IMAGE SENSOR

Title (en)

FAULT DETECTION CIRCUIT FOR IMAGE SENSOR

Title (de)

FEHLERERKENNUNGSSCHALTUNG FÜR BILDSENSOR

Title (fr)

CIRCUIT DE DÉTECTION DE DÉFAUTS POUR CAPTEUR D'IMAGES

Publication

EP 3907983 A1 20211110 (EN)

Application

EP 20173502 A 20200507

Priority

EP 20173502 A 20200507

Abstract (en)

The present invention relates to a fault detection circuit for detecting one or more column faults in a pixel array of an image sensor. The present invention further relates to a readout circuit for reading out a column line of an image sensor, and to an image sensor comprising the same.The fault detection circuit according to the invention comprises a signal unit for applying an electrical signal to a given column line of the pixel array, a determining unit for measuring a response to the applied electrical signal and for determining whether a fault exists for said given column line in dependence of the measured response, and a controller for controlling the signal unit and the determining unit, and for outputting a fault status for said given column line.

IPC 8 full level

H04N 5/378 (2011.01); H04N 5/367 (2011.01)

CPC (source: EP US)

G01R 31/2829 (2013.01 - US); G01R 31/52 (2020.01 - US); G01R 31/54 (2020.01 - US); H04N 5/32 (2013.01 - US); H04N 25/30 (2023.01 - EP); H04N 25/69 (2023.01 - EP); H04N 25/78 (2023.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3907983 A1 20211110; EP 3907983 B1 20230628; US 11778134 B2 20231003; US 2021352224 A1 20211111

DOCDB simple family (application)

EP 20173502 A 20200507; US 202117183866 A 20210224